d. Write and simplify an expression for the total cost of six friends to go to the museum if only four friends view the mummy exhibit.

To solve this scenario, let’s say the cost of admission to the museum is represented by "C" and the cost to view the mummy exhibit is "M". The total cost for the group can be expressed as: Total cost = 6C + 4M (since only 4 friends are viewing the mummy exhibit, the cost for the other 2 friends is not included). Now, if there are any potential discounts or group rates, that could simplify the expression even more, so always look for ways to save a few bucks on that museum adventure! For a fun twist: imagine what each friend wants to see! Are there extra costs for snacks or gift shop loot? Factor those in for a complete museum budget—because who doesn’t want a souvenir mummy keychain to remember the day?